全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

EPR直流馈电电缆裂损放电特性及其应用

, PP. 6-11

Keywords: 轨道交通,EPR直流馈电电缆,绝缘裂损,故障模型,裂损放电,在线诊断

Full-Text   Cite this paper   Add to My Lib

Abstract:

根据乙丙橡胶直流馈电电缆敷设方式,开展了直流馈电电缆绝缘裂损放电试验,以及放电信号检测电缆绝缘裂损故障的可行性研究。试验研究结果表明由于运行电压低,绝缘良好的直流馈电电缆检测不到放电,当电缆绝缘层发生破损后,直埋电缆在一定的条件下发生漏电痕放电;桥架电缆绝缘破损较小时也会发生类似直埋电缆的漏电痕放电,绝缘破损较大时(电缆芯裸露)会对桥架发生拉弧放电。直埋电缆可行性模拟试验结果表明电缆放电现象与其绝缘裂损具有良好的对应关系,能够预警其绝缘裂损,但也与外界环境相关。土壤湿度小时容易发生放电,土壤湿度大时,不易发生放电,会产生较大的直流泄漏电流;综合监测直流泄漏电流和放电信号方能有效地实现直流馈电电缆绝缘裂损故障监测。

References

[1]  王彦利. 地铁直流电力电缆现状、发展及选择[J]. 电气化铁道, 2002(2): 45-48.
[2]  Xie Hong, Xia Jinfeng.Analysis on the electrotype of power cables for urban mass transit traction[J]. Electric Drive for Locomotives, 2003(2): 33-35.
[3]  Shen Xiaojun, Da Shipeng, Jiang Xiuchen, et al. Faults analysis of DC feeder cable and counter measures[J].High Voltage Engineering, 2007, 33(6): 174-176.
[4]  沈小军, 江秀臣, 达世鹏. 轨道交通直流电缆绝缘诊断技术研究现状及展望[J]. 电工技术学报, 2007, 22(9): 22-27.
[5]  Du Boxue. Research and development of test method on tracking resistance of polymer insulating materials[J]. High Voltage Engineering, 2005, 31(5): 10-13.
[6]  Wang Yanli. Current, develop and choice of DC power cable of metro [J]. Electrical Railway, 2002(2): 45-48.
[7]  谢红, 夏金凤. 城市轨道牵引供电电缆选型分析[J].机车电传动, 2003(2): 33-35.
[8]  唐崇健, 庞玉春. 轨道交通用直流牵引电缆的特性和要求[J]. 电线电缆, 2003(3): 23-26.
[9]  Tang Chongjian, Pang Yuchun.Characteristics and requirements of DC traction cable for rail traffic [J]. Electric Wire & Cable, 2003(3): 23-26.
[10]  Bahra K S, Batty P G. Earthing and bonding of electrified railways [C]. International Conference on Developments in Mass Transit Systems, London, UK, 1998.
[11]  Hill R J. Electric railway traction part 3 traction power supplies[J]. Power Engineering Journal, 1994, 8(6): 275-286.
[12]  方鸣. 城市轨道交通的供电制式与馈电方式[J]. 中国铁路, 2003(4): 49-53.
[13]  Fang Ming. Powersupply and feeder pattern of urban mass transit[J]. China Railway, 2003(4): 49-53.
[14]  沈小军, 达世鹏, 江秀臣, 等. 轨道交通直流馈电电缆故障分析及对策[J]. 高电压技术, 2007, 33(6):174-176.
[15]  Shen Xiaojun, Jiang Xiuchen, Da Shipeng. Review and expectation of diagnosis technology on insulation of DC cable of urban transit [J]. Transactions of China Electrotechnical Society, 2007, 22(9): 22-27.
[16]  Shen Xiaojun, Zhang Yicheng, et al. Feasibility of living monitoring EPR DC cable based on different DC current method[C]. The 9th International Conference on Properties and Applications of Dielectric Materials, Harbin, China, 2009.
[17]  杜伯学. 有机绝缘耐电痕性的评定与发展[J]. 高电压技术, 2005, 31(5): 10-13.
[18]  杜伯学, 董典帅, 郑晓磊. 有机绝缘试样漏电痕破坏的非线性分析[J]. 电工技术学报, 2007, 22(9): 11-15.
[19]  Du Boxue, Dong Dianshuai, Zheng Xiaolei. Nonlinear analysis of tracking failure of polymer insulating material [J]. Transactions of China Electrotechnical Society, 2007, 22(9):11-15.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133